Stadia mark
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Stadia marks, also called stadia lines or stadia hairs, are crosshairs on the reticle of a theodolite or other surveying instrument that allow stadiametric rangefinding. Wikipedia
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Some optical instruments also have two short horizontal lines, one above and one below the horizontal crosshair. These lines are termed Stadia Lines or. Stadia ...
Stadiametric rangefinding, or the stadia method, is a technique of measuring distances with a telescopic instrument. The term stadia comes from a Greek unit ...
Duration: 1:43
Posted: Jun 1, 2013
Posted: Jun 1, 2013
There may also be two short stadia lines. Stadia are used for measuring the distance to the staff by multiplying the difference between the two stadia readings ...
The upper and lower stadia lines are used to gauge stadia distance, which is a method of reading distance off of the rod and level alone (based on parallax). We ...
The stadia lines are two short horizontal lines drawn above and below a central horizontal line in the focal plane of the telescope; these lines appear ...
Sep 27, 2020 · One set of lines was plotted according to horizontal stadia distance reduction, the other according to vertical stadia distance reduction. These ...
The meaning of STADIA is a surveying method for determination of distances and differences of elevation by means of a telescopic instrument having two ...
Two horizontal lines, one above and the other below the cross-hairs of a *theodolite or *level, which are used in ... ...